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Veronika [31]
3 years ago
12

Simplify Expression.-4 + 8p - 6p - 5 + 20pplease step by step. ​

Mathematics
2 answers:
Shkiper50 [21]3 years ago
5 0
—4 and -5= -9 then 8p-6p=2p and 2p+20p= 22p-9
lesya [120]3 years ago
4 0

Answer:

p= 9/22

Step-by-step explanation:

grouping of like terms

= -4-5 +8p-6p+20p

= -9 +22p

p =9/22

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–40-7+3u simplified expression​
svet-max [94.6K]

Answer:

3u-47

Step-by-step explanation:

Just combine like terms, which for this case is the -40 and the -7. Hope this helps!

7 0
3 years ago
Jeffrey buys a microscope priced at $333.74. Shipping and handing are an additional 10 of the price. How much shipping and handl
marusya05 [52]

Answer:

$42.28.

Step-by-step explanation:

A jacket costs $72.90 before it is marked down 42%. What is its new price, to the nearest cent? B - $42.28.

7 0
3 years ago
Read 2 more answers
Consider a civilization broadcasting a signal with a power of 2.0×104 watts. The Arecibo radio telescope, which is about 300 met
Vitek1552 [10]

For light: Inverse Square Law 

<span>
The signal is weaken by the inverse square of the difference of distances this means that one over the square of the difference. </span>

<span>
</span>

Therefore, 70000LY / 141 LY =496.45 and that squared =246462.602 times less signal, or 1/246462.602.


 2 For a circular telescope like the Arecibo radio telescope that equals Pi times the radius squared. Sensitivity of the telescope depends on its area.<span>
The new telescope needs 246462.60 times that area to have enough sensitivity </span>

<span>
<span>(150 x 150 x Pi) = 70 685 sq m area for the Arecibo telescope and that times 246462.60
= 1.74212 x 10^10</span></span>

<span><span>
</span></span>

What is the diameter of a circle with that area?

 <span>
<span>1. Divide the area by Pi = 5.548156 x 10^9
2. Take the square root of the result to find the radius = 74485.94293</span></span>

3. Multiply by 2 to find the diameter = <span>148971.886</span>

7 0
3 years ago
Jeffrey is using a copy machine to make posters for a school play. The machine prints the posters at a constant rate. After 3 mi
jasenka [17]

Answer:

B: 11 minutes.

Step-by-step explanation:

So, we know that the machine prints at a constant rate.

After 3 minutes, the machine prints 108 posters.

So, let’s find the <em>unit rate. </em>We will divide the output over the input. So:

108\text{ posters}/3\text{ minutes}=36\text{ posters/min}

So, the unit rate of the machine is 36 posters per minute.

We can write an equation. If t represent the number of minutes and p represent the amount of posters, then:

p=36t

Gives the amount of posters p and t minutes.

We want to know how long it will take Jeffrey to make 396 posters.

So, we can substitute 396 for p and solve for t. Hence:

396=36t

Divide both sides by 36:

t=11

Therefore, it will take Jeffrey 11 minutes to make 396 posters.

7 0
3 years ago
If you are a student with no assets of any value and have liability insurance on an old car that pays a
docker41 [41]

Answer:

you pay 25, 000 from your own pocket and the insurance pays 50,000

Step-by-step explanation:

pls mark brainliest if this helped u

4 0
3 years ago
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